Fisheries Management and Ecology最新文献_第8页

Interacting effects of density and temperature on growth of wild and hatchery young-of-the-year anadromous brown trout (Salmo trutta L.) 密度和温度对野生和孵化年幼溯河褐鳟（Salmo trutta L.）生长的交互影响

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-07-04 DOI: 10.1111/fme.12724

Adam M. Lejk, Szymon Smoliński, Maksym Łaszewski, Grzegorz Radtke

引用次数: 0

Effect of stocking on brown trout angling catch rates in the Czech Republic during 1996–2018 1996-2018 年间放养对捷克共和国褐鳟垂钓捕获率的影响

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-07-04 DOI: 10.1111/fme.12726

Luděk Šlapanský, Michal Janáč, Pavel Jurajda

引用次数: 0

Collaborative research enhances selectivity in a lake fishery 合作研究提高了湖泊渔业的选择性

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-07-04 DOI: 10.1111/fme.12723

Alfred Sandström, Johnny Norrgård, Thomas Axenrot, Henrik Ragnarsson-Stabo, Malin Setzer, Tomas Jonsson

{"title":"Collaborative research enhances selectivity in a lake fishery","authors":"Alfred Sandström, Johnny Norrgård, Thomas Axenrot, Henrik Ragnarsson-Stabo, Malin Setzer, Tomas Jonsson","doi":"10.1111/fme.12723","DOIUrl":"10.1111/fme.12723","url":null,"abstract":"Size and species selectivity are crucial for developing sustainable fisheries. Our objective was to estimate the selectivity of whitefish fisheries in a large European lake through a collaboration of fishers, regional managers, and scientists. Fishers were given special permits to test, within a common framework and together with scientists, selectivity enhancement strategies adapted to their own experiences. Fishers and scientists jointly tested gillnets and pontoon traps and how fishing depth, soak time, fishing season, and mesh size were affected by bycatches of undersized fish of sensitive species. Results indicated that the selectivity of the fishery could be increased, particularly by targeting whitefish adjacent to spawning sites where spatiotemporal overlap with bycatch species was lower. Proposed changes to the fishery, such as new gear, would be costly initially but could become profitable over time due to a lower cost of handling bycatch. Our findings demonstrated that co-constructed knowledge can contribute to the governance of aquatic resources.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 6","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12723","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensitivity of the stock assessment for the Antarctic krill fishery to time-varying natural and fishing mortality 南极磷虾渔业资源评估对随时间变化的自然死亡率和捕捞死亡率的敏感性

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-06-28 DOI: 10.1111/fme.12721

Elling Deehr Johannessen, Bjørn A. Krafft, Carl R. Donovan, Rodrigo Wiff, Bruno Caneco, Andrew Lowther

{"title":"Sensitivity of the stock assessment for the Antarctic krill fishery to time-varying natural and fishing mortality","authors":"Elling Deehr Johannessen, Bjørn A. Krafft, Carl R. Donovan, Rodrigo Wiff, Bruno Caneco, Andrew Lowther","doi":"10.1111/fme.12721","DOIUrl":"10.1111/fme.12721","url":null,"abstract":"The stock assessment model for the Antarctic krill fishery is a population model operating on daily timesteps, which permits modeling within-year patterns of some population dynamics. We explored the effects of including within-year patterns in natural and fishing mortality on catch limits of krill, by incorporating temporal presence of key predator species and contemporary temporal trends of the fishing fleet. We found that inclusion of within-year variation in natural and fishing mortalities increased catch limits. Fishing mortality had a greater effect than natural mortality despite differences in top-down predation on krill, and potentially increased catch limits by 24% compared to the baseline model. Additionally, the stock assessment model allowed a higher catch limit when fishing was during peak summer months than autumn. Number of days with active fishing was negatively related to precautionary catch limits. Future stock assessments should incorporate contemporary spatiotemporal fishing trends and consider implementing additional ecosystem components into the model.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 6","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12721","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling interconnectedness between marine protected and non-protected areas in Tanzania: Insights from barred mudskipper (Periophthalmus argentilineatus) population genetic structure 揭示坦桑尼亚海洋保护区和非保护区之间的相互联系：从条弹涂鱼（Periophthalmus argentilineatus）种群遗传结构中获得的启示

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-06-21 DOI: 10.1111/fme.12722

Cyrus Rumisha

{"title":"Unveiling interconnectedness between marine protected and non-protected areas in Tanzania: Insights from barred mudskipper (Periophthalmus argentilineatus) population genetic structure","authors":"Cyrus Rumisha","doi":"10.1111/fme.12722","DOIUrl":"10.1111/fme.12722","url":null,"abstract":"Marine protected areas (MPAs) are globally recognised for their role in safeguarding marine fisheries from the detrimental impacts of human activities and climate change. Tanzania, in alignment with global conservation efforts, has designated 18 MPAs and plans to establish four more in the Southwestern Indian Ocean. However, a critical challenge arises from the lack of a thorough understanding of genetic connectivity between populations in MPAs and non-protected areas (NPAs). To address this, 151 mitochondrial D-loop sequences (357 base pairs) of Barred mudskipper (Periophthalmus argentilineatus) were analysed to assess genetic connectivity between MPAs and NPAs in Tanzania. The findings revealed a low and insignificant index of genetic differentiation (FST = −0.0046, p > 0.05) between populations in MPAs and NPAs. Furthermore, haplotypes from both MPAs and NPAs did not cluster based on their geographical origins, with over 9 haplotypes shared between these areas. Additionally, the measured haplotype and nucleotide diversities did not differ significantly between MPAs and NPAs (p > 0.05). However, MPAs showed a significantly higher number of private haplotypes compared to NPAs (p < 0.05). These findings suggest high genetic interconnectedness between populations in MPAs and NPAs, underlining the importance of existing MPAs in preserving local genetic diversity and their potential to replenish depleted NPAs. However, realising the full potential of this interconnectedness necessitates stringent enforcement of sustainable fishing practices to alleviate pressure on fish stocks. It also requires the protection of critical habitats that serve as corridors for fish dispersal, facilitating interconnectedness between MPAs and NPAs.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 6","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Willingness to pay for recreational fisheries in Europe 欧洲休闲渔业的付费意愿

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-06-14 DOI: 10.1111/fme.12719

Ing-Marie Gren, George Marbuah

引用次数: 0

Value of data in stock assessment models with misspecified initial abundance and fishery selectivity 数据在初始丰度和渔业选择性指定错误的种群评估模型中的价值

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-05-29 DOI: 10.1111/fme.12718

Miren Altuna-Etxabe, Dorleta Garcia, Leire Ibaibarriaga, Quang C. Huynh, Hilario Murua, Thomas R. Carruthers

引用次数: 0

Spatial and temporal variation of biomass density beneath drifting fish-aggregating devices in the western and central Pacific Ocean 太平洋西部和中部漂流聚鱼装置下生物量密度的时空变化

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-05-25 DOI: 10.1111/fme.12711

Tianjiao Zhang, Jia Xin, Liming Song, Hongchun Yuan

{"title":"Spatial and temporal variation of biomass density beneath drifting fish-aggregating devices in the western and central Pacific Ocean","authors":"Tianjiao Zhang, Jia Xin, Liming Song, Hongchun Yuan","doi":"10.1111/fme.12711","DOIUrl":"10.1111/fme.12711","url":null,"abstract":"We analyzed three-dimensional (3-D) spatial and temporal variation of biomass density associated with drifting fish aggregating devices (dFADs) in the western and central Pacific Ocean. Detection depth of dFAD echosounder buoys was divided into three layers, for estimation of biomass density in each layer based on detected water volume. Temporal variation and spatial distribution of biomass density in each layer were compared. Similarity of biomass density gravity center shifts in each layer were assessed using the dynamic time warping (DTW) regularization algorithm. Biomass density varied regularly over ~1 month, with the 2nd and 3rd layers delayed ~14 days compared to the 1st layer. Biomass distribution range and density values were higher in the 1st layer than the 2nd and 3rd layers, but locations of maximum biomass density were close. The distribution of biomass density gravity centers between adjacent water layers were similar, with gravity centers of the 2nd and 3rd layers shifted over time in relationd to the 1st layer. Our study demonstrated that the aggregation behavior of species from different water layers attracted by dFADs were related, and emphasized the necessity for ecosystem-based fisheries management.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 5","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Salmonids in hot water: An unprecedented warm-water event in Labrador, a subarctic region of Canada 鲑鱼陷入水深火热之中加拿大亚北极地区拉布拉多前所未有的暖水事件

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-05-20 DOI: 10.1111/fme.12710

Emilie A. Geissinger, Travis E. Van Leeuwen, Nicholas Kelly, Curtis Pennell, Michelle G. Fitzsimmons, Steven Duffy, Rebecca Poole, Joey Angnatok, J. Brian Dempson, David Coté

引用次数: 0

Horizon scan survey to identify key research questions to promote sustainability of the marine recreational fishery in Namibia 开展地平线扫描调查，确定促进纳米比亚海洋休闲渔业可持续性的关键研究问题

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-05-14 DOI: 10.1111/fme.12709

Natanah M. C. Gusha, Margit R. Wilhelm, Christopher S. Bova, Georg H. Engelhard, Kieran Hyder, Warren M. Potts

{"title":"Horizon scan survey to identify key research questions to promote sustainability of the marine recreational fishery in Namibia","authors":"Natanah M. C. Gusha, Margit R. Wilhelm, Christopher S. Bova, Georg H. Engelhard, Kieran Hyder, Warren M. Potts","doi":"10.1111/fme.12709","DOIUrl":"10.1111/fme.12709","url":null,"abstract":"Recreational fishing is popular worldwide, but many low- and middle-income countries (LMICs) are experiencing increased participation and reduced catches. Like other LMICs, the recreational fishery in Namibia is facing concerns regarding its sustainability. Empirical evidence suggested limited knowledge of the fish and fishery as one plausible cause. Herein, we used a horizon scan survey to identify critical questions by anglers and decision makers to facilitate sustainable and adaptive management strategies. Of 115 questions and concerns raised by 59 stakeholders, including fisheries managers, anglers (specialists and non-specialists), and scientists, 58 of the top research questions were organised within 11 high-priority themes, including: governance; human dimensions; regulatory actions; compliance; knowledge of fish populations; resource monitoring and data acquisition; angler outreach, education, and engagement; competing sectors/groups; bioeconomics; catch-and-release practises and perceived threats. Questions raised by non-specialist anglers differed from those raised by specialist anglers and scientists, which highlighted the potential importance of integrating fisher ecological knowledge into fishery management. Although questions were in the context of recreational fisheries, we recommend that some of the themes identified herein may be applicable to other LMICs and may also improve understanding of other fisheries, such as small-scale or commercial fisheries.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"32 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12709","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140979746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0